class MusicPlayer(object):
    instance = None  # 用来保存对象
    def __new__(cls, *args, **kwargs):
        # 1、创建对象，分配空间
        if cls.instance is None:
            cls.instance = super().__new__(cls)  # 父类的new相当于c的申请空间
        return cls.instance
    def __init__(self, name):
        self.name = name





if __name__ == '__main__':
    player1 = MusicPlayer('七里香')
    player2 = MusicPlayer('东风破')
    print(id(player1))
    print(id(player2))
    print(player1.name)
    print(player2.name)

